fix(phase26): server trip delete persists across recompute + batch delete with checkboxes

server/modules/db.py

@@ -398,6 +398,15 @@ def compute_trips_for_device(device_id):
             "point_count": len(seg_rows),
         })
 
+    # Skip trips that were manually deleted (recompute won't re-insert them).
+    with get_cursor() as cur:
+        cur.execute(
+            "SELECT start_time FROM deleted_trip_markers WHERE device_id = %s",
+            (device_id,),
+        )
+        deleted_starts = {row[0] for row in cur.fetchall()}
+    trips = [t for t in trips if t["start_time"] not in deleted_starts]
+
     with get_cursor(commit=True) as cur:
         for t in trips:
             cur.execute(
@@ -540,13 +549,45 @@ def get_dashcam_file(device_id, file_id):
 
 
 def delete_trip(device_id, trip_id):
-    """Delete a computed trip record. Raw tracking_points are NOT removed."""
+    """Delete a computed trip record and mark its time range as deleted
+    so auto-recompute doesn't re-insert it. Raw tracking_points are kept."""
     with get_cursor(commit=True) as cur:
+        # Record the start_time before deleting so recompute skips this trip.
         cur.execute(
-            "DELETE FROM trips WHERE id = %s AND device_id = %s RETURNING id",
+            "SELECT start_time FROM trips WHERE id = %s AND device_id = %s",
             (trip_id, device_id),
         )
-        return cur.fetchone() is not None
+        row = cur.fetchone()
+        if row is None:
+            return False
+        cur.execute(
+            """INSERT INTO deleted_trip_markers (device_id, start_time)
+               VALUES (%s, %s) ON CONFLICT DO NOTHING""",
+            (device_id, row[0]),
+        )
+        cur.execute(
+            "DELETE FROM trips WHERE id = %s AND device_id = %s",
+            (trip_id, device_id),
+        )
+        return True
+
+
+def delete_trips_batch(device_id, trip_ids):
+    """Delete multiple trips in one transaction."""
+    deleted = 0
+    for tid in trip_ids:
+        if delete_trip(device_id, tid):
+            deleted += 1
+    return deleted
+
+
+def clear_deleted_trip_markers(device_id):
+    """Remove all deleted trip markers so recompute rebuilds everything."""
+    with get_cursor(commit=True) as cur:
+        cur.execute(
+            "DELETE FROM deleted_trip_markers WHERE device_id = %s",
+            (device_id,),
+        )
 
 
 def delete_dashcam_file(device_id, file_id):